Apparatus for tearing or cutting off pieces from rolled-up paper.



APPLIOATION FILED OOT.10, 1912.

Patented Aug. 18, 1914.

lure/2hr; Mild,

THE NORRIF'EYERS C11. PHOTOJJTHO.) WASHING TON. D, C

FREDERIK SCHADE, OFSKIVE, DENMARK.

APPARATUS FOR HEARING OR CUTTING OFF PIECES FROM ROLLED-UP EAPER.

Specification of Letters Patent. Patented Aug, 18, 1914. Applicationiiled October 10, 1912. Serial No. 725,067.

To all whom it may concern:

Be it known that I, .Fnnnnnn; Sermon, a citizen of the Kingdom ofDenmark, and

resident of Skire, Province of Jutland, in

the Kingdom of Denmark, have invented certain new and usefulImprovements in Apparatus for Tearing or Cutting Off Pieces fromRolled-Up Paper, of which the following is a'specification.

The object of the present invention is an apparatus for tearing orcutting off pieces from rolled-up paper, and its principal featureconsists in forming, before the action of cutting and 011 that part ofthe paper which is not torn or cut off, a bend orla wave which againstraightens itself out after the cutting and makes it possible to geteasily hold of the paper again when, for

the purpose of cutting off a new piece more paper has to be rolled offthe roll. The knife may be arranged at any distance from the paper-rollso that several paper-courses of either the same or of difl'erent widtlrmay be cut by one single knite at the same place.

On the accompanying drawing: Figure 1 represents a vertical longitudinalsection of one constructional form of the apparatus, and Figs. 2, 3 and4 are special forms of construction of the knife and wave-formingdevice.

Similarreference characters indicate corresponding parts throughout thedifferent figures of the drawing.

By way of example Fig. 1 shows two paper-rolls 1 and 2. The paper iscarried to the brakes 3, 4: and 5, (3, each of these consists of tworollers of which the bottom ones, 4 or 6, can revolve in bearings in twofixed side-plates 15, while the upper ones 3 or 5, are guided in notchesin the said plates, thus pressing by their weights against the bottomrollers. The paper is thereby held. between the two rollers. The toproller may also, for instance by means of a spring, be pressed againstthe bottom roller, but this arrangement has not been shown on thedrawing. The paper is then carried undera guide-roller 7 to the placewhere the bend or the wave is to be formed, which is, caused by themovement of the cutting device. i

The cutting device consists of two parallel arms 9 which are connectedby means of a transverse bolt or roller 10, the knife proper 16 and abolt 11 on which the whole cutting device is pivoted and which has itshearings in the plates 15. From the guideroller 7 the paper is carriedover the roller 10, then under a guide-roller 8, then throu h an opening14; in the wall 12 which carries the side-plates 15, and between theknife 16 proper and a bracket-13 projecting from the wall 12. Thecutting takes placeon the bracket. The bracket 13 maybe cut away at 17so that it becomesmore easy to take hold of the paper. 1

The working of the apparatusis as follows: As the knife is presseddownward to out off the paper, see Fig. l,theroller 10 is brought upwardto form a bend. ."'lhe cutting-off then takes place. Asthe knife 16 isagain carried upward and the roller 10 downward, the bend willstraighten itself out andythe paper he pushed forward in front of theknife 16, the brakes preventing the paper from moving the opposite way.Figs. 2 and 3 show other means for forming the bends orwaves of thepaper. InFig. 2 are used fixed rodslS against which is carried acorrespondingly corrugated piece 19, between the arms 9. In Fig. 3 therods 18 are replaced by a fixed piece 20 corrugated on its undersidewhich presses the paper against a correspondinglygrooved' rearportion ofthe lmifecarrying arms 9. In F lg. 41 will be seen, besides the roller10, one more roller 21 mounted above between the arms 9. straighteningout the bend if this cannot be done except by special means, either withcertain kinds of paper or if the bend is formed downward. The movementof the knife is in this case limited, so that no bend is made in theopposite direction; The smoothing out of the bend may be done in manyother ways, for example by the pressure of a spring or by a specialweight.

I claim:

1. An apparatus for tearing or cutting off pieces from rolled-up paper,in which the tearin or cutting off is effected by means of a knife,wherein the knife is fixed between the two arms of two double-armedlevers placed on the same side of the common axis of rotation of thelevers, the other two arms being connected by a rod or rods, or the Thisroller is intended for like, which form simultaneously with the cuttingoperation one or more corrugations or slack portions in the paper insuch a manner that the paper, which is held by suitable roller-brakes,after the cutting offhas taken place and the knife has returned to itsoriginal position, is straightened out and thereby moves forward in sucha manner that it may be easily caught hold of in order to carry out theneXt severing operation.

2. A paper-cutting apparatus, comprising two levers spaced apart andhaving a commonaxis, a knife supported by said levers at one side of theaxis, braking means preventing linear return movement of the paperbehind the knife, papenbending devices spaced apart along the path ofthe paper fed to the knife, and a paper-bending device on the lever,movable during themovement" of the lever to cuttingposition, intooperative 20 relation with said first-named paper-bendf ing devices I toform a self-straightening bight in. the paper, and movable, duringmovement of the knife out of cutting .posi-, tion, away from saidfirst-named paperbending devices to releasesaid bight.

SNA FZL'FSI CHttlHgjI pparatus, com prising two levers spaced apart andhaving a common axis, a knife supported by said levers at one side ofthe axis, braking" means pre- 30 venting linear return movement ofthepaper behind the knife, paper-bending devices spaced apart along thepath of the paper fed to the knife, and a paper-bending device on thelever,.1novable during the more ment of the lever to cutting position,into operative ,relation with said first-named paperbending devices toform a self-; straightening bight in the paper, and mov: able, duringmovement of the knife out of cutting position, away from saidfirst-namedi;

paper-bending, devices to release said bight; said first-named paper;bending devices comprising a plurality of fixed transverse rods, and saidsecondpaper-bending device com- Afi prising altra-nsverse member secured.at its- .ends to the leversand having at its upper and movable, duringmovement of the knife out of cutting position, away from said firstnamedpaper-bending devices to release said bight', and means carried by saidlevers for straightening the bight during said ,lastnamedmovement.

5. A paper-cutting apparatus, comprising two levers spaced apart andhaving a common axis,'a knife supported by said levers atone side of theaxis, braking means prevent ng linear return movement of the paperbehind the knife, paper bending devices spaced apart along the path ofthe paper fed to the knife pa er-bendin device on the v. 7 4 fi levermovable durin the movement of the lever to euttingposition, intooperative relation with said first-named paper-bending devices to form aself-straightening bight in the paper, and movable, during movement -ofthe knife out of cutting position, away from said first-namedpaper-bending devices;

to release said bight, and means forguiding two superposed webs of paperto said braking means.

In testimony that I claim the foregoing as vmy invention, I have signedmy name in presence of two subscribing witnesses.

FREDERIK SGHADE. Witnesses:

ERNEST BOUTARD, HJALMAR BOUTARD.

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